HELP I HAVE 5 MIN TO TURN THIS IN What are the simplified versions of the expressions shown below??

WILL MARK BRAINLIEST
(11, 15, and 18 don't count)

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re